JPS5981916U - Corrosion-proof reheater - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の再熱器の系統図、第２図はこの考案に係
る再熱器の系統図である。 ３・・・・・・高圧タービン、５・・・・・・再熱器、
７・・・・・・低圧タービン、９・・・・・・パージ気
体供給管路、１２・・・・・・加熱器、１４・・・・・
・封入気体供給管路、Ｓ・・・・・・蒸気。FIG. 1 is a system diagram of a conventional reheater, and FIG. 2 is a system diagram of a reheater according to this invention. 3... High pressure turbine, 5... Reheater,
7...Low pressure turbine, 9...Purge gas supply pipe, 12...Heater, 14...
・Enclosed gas supply pipe, S...Steam.

Claims (1)

【実用新案登録請求の範囲】 １　高圧タービン排気たる蒸気を伝熱管により再過熱し
て低圧タービンに供給するものにおいて、二の伝熱管に
対してパージ気体供給管路を接続し、タービン停止時に
この伝熱管内に残留する蒸気をパージ気体により外部に
排出する防食型再熱器。 ２　実用新案登録請求の範囲第１項記載の防食型再熱器
において、前記パージ気体供給管路に加熱器を配置し、
伝熱管内に供給するパージ気体を高温の乾燥空気とした
もの。 ３　実用新案登録請求の範囲第１項または第２項記載の
防食型再熱器において、前記パージ気体供給管路に対し
て封入気体供給管路を接続し、伝熱管のパージ後に伝熱
管に不活性ガスを封入するよう構成したもの。[Claims for Utility Model Registration] 1. In a system in which steam from the high-pressure turbine exhaust is reheated by a heat transfer tube and supplied to the low-pressure turbine, a purge gas supply pipe is connected to the second heat transfer tube, and when the turbine is stopped, the purge gas supply pipe is A corrosion-resistant reheater that exhausts steam remaining inside heat transfer tubes to the outside using purge gas. 2. In the anti-corrosion reheater according to claim 1 of the registered utility model, a heater is disposed in the purge gas supply pipe,
The purge gas supplied into the heat transfer tube is high temperature dry air. 3. In the anti-corrosion reheater according to claim 1 or 2 of the utility model registration claim, an enclosed gas supply pipe is connected to the purge gas supply pipe, and after the heat transfer tube is purged, the heat transfer tube is free from damage. Constructed to enclose active gas.